Home / 193,091.20-289,636.80-168,515.20

Finding the Fourth Proportional to 193,091.20, 289,636.80 and 168,515.20

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Solution

The fourth proportional to 193,091.20, 289,636.80 and 168,515.20 is: 252,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,091.20 : 289,636.80 = 168,515.20 : x
  2. Step 2: Convert to fraction form
    193,091.20/289,636.80 = 168,515.20/x
  3. Step 3: Cross multiply
    193,091.20x = 289,636.80 × 168,515.20
  4. Step 4: Simplify right side
    193,091.20x = 48,808,203,279.36
  5. Step 5: Solve for x
    x = 48,808,203,279.36/193,091.20
  6. Step 6: Final answer
    x = 252,772.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.